Objective 6-Even/odd vertices & tracing of edges

In this objective, the letters in the answers stand for:
G-Grocery
B-Bookstore
F-Flower Shop
H-Health Spa
This is a two way connection as you can see, because if you turn the chart on its side, you will see that it is conguent.
You simple match up the distances in the chart, with the distances in the pictures.
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So the answer is A